Adjustable support for lenses for lamps.



No. 689,549. Patented Dec.'24,'l90l. w. H. KIMBALL.

ADJUSTABLE SUPPORT FOR LENSES FOR LAM-PS.

(Application filed Apr. 20, 1899. Renewed Nov. 22, 1900.) (No Model.)

UNITED STATES PATENT OFFICE.

WILLIAM H. KIMBALL, OF BOSTON, MASSACHUSETTS.

ADJUSTABLE SUPPORT FOR LENSES FOR LAMPS.

SPECIFICATION forming part of Letters Patent No. 689, 549, datedDecember 24, 1901. Application filed April 20, 1899. Renewed November22, 1900. Serial No. 37,397. (No model.)

To all whom it 777/6ty concern:

Be it known that 1, WILLIAM H. KIMBALL, of Boston, in the countyofSuffolk and State of Massachusetts, have invented an Improve ment inAdjustable Supports for Lenses for Lamps, of which the following is aspecification.

The object of my invention'is to providea cheap, simple, convenient,efficient, and durable wire support for suspending a magnifying orlight-increasing lens from the upper end of the chimney of a commonkerosenelamp so as to retain the magnifying-lens in position on thelamp-chimney opposite the flame of the burner when lighted, so as toincrease the rays of the same, as heretofore employed forthe purpose;and it consists in the construction, combination, and arrangement of theadjustable wire suspension lens-support for lamps, as herein-after morefully described, and set forth in the claim.

To the drawings hereto annexed, which form a part of this specification,reference is made.

Figure 1 represents an elevation showing an adjustable wire support forlenses for lamps constructed to embody my invention with the samesuspended from the top of the chimney of the lamp when in use formagnifying the flame. Fig. 2 represents a perspective view showing anadjustable wire lenssupport disconnected from the lens and removed fromthe lamp-chimney and drawn upon an enlarged scale. A represents a lampprovided with a chimney B, from the upper'end of which is suspended themagnifying-lens N, of usual construction. Now it will be seen andunderstood that .in order to retain the lens at the desired'pointopposite the flame of the lamp, in order that the best results may beobtained, it will be necessary toprovide a support for suspending thelens from the upper end of the chimney B, which support. may belengthened or shortened, so as to correspond with various lengths ofchimneys employed upon difierent lamps. I provide the ad justable wiresupport consisting of the two similar parts, the upper part E having thetwo parallel opposite members F bent inwardly and brought together andtwisted or connected each with the other, and then the upper endsthereof are bent so as to form a suspension-hook G, which is adapted toengage with the upper end of the lamp-chimney, as shown in Fig. 1. Thelower part H consists of a similar single continuous piece of wire, theopposite parallel members I, the

lower ends of which are bent so as to be se cured and connected to themetal or frame of the lens N in any suitable manner or as heretoforeemployed for the purpose. These upper and lower parts E and H may bepreviously constructed exactly alike before the extreme upper and lowerends are bent, as shown. Each part E and H, having straight parallelopposite members F F and I I, is provided with a right-angle cross-pieceL and small eyes K, formed at the right-angle corners of the parallelportions F F and I I at the points of their intersection with theopposite eye portions K of the connecting crosspiece L, as shown in Fig.2. Now it will be seen that the straight parallel members of each part Eand H are slipped through the eyes K of the opposite part, so that thefour parallel members passing through the four corresponding eyes K willproduce sufficieut friction to sustain each of said parts in therelative position desired, by which meansthe adjustment of the said wiresupport longitudinally to the length desired may be easily and quicklyeifected, so as to elongate or shorten the relative distance between theI hook G and lens N, as above described.

Having thus described my invention, what I claim is As an improvedarticle of manufacture, the adjustable wire support for suspending alens from the upper end of a lamp-chimney, consisting of an upper partprovided with an attaching-hook and having parallel members connected bya right-angle portion having small bent eyes which engage the parallelmembers of the lower part, and the lower part adapted to be attached toa lens and having parallel members connected by a right-angle portionhaving small bent eyes which engage the parallel members of the upperpart; all being constructed and arranged as described.

WILLIAM H. KIMBALL.

\Vitnesses:

SYLvENUz WALKER, BENJ. V. PAGE.

